Editorial Technical Reference

Precision Optical Lens Coating Chamber

This page explains how Precision Optical Lens Coating Chamber is classified within Manufacture of Optical Instruments and Photographic Equipment. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

The Precision Optical Lens Coating Chamber is a specialized vacuum chamber component designed for the deposition of anti-reflective, protective, or functional thin-film coatings onto optical lens surfaces.

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Product Specifications

Technical details and manufacturing context for Precision Optical Lens Coating Chamber

Definition
The Precision Optical Lens Coating Chamber is a specialized vacuum chamber component designed for the deposition of anti-reflective, protective, or functional thin-film coatings onto optical lens surfaces. This critical sub-assembly enables precise control of coating thickness and uniformity during manufacturing processes. It serves as a core component in optical coating systems within the B2B supply chain for camera lenses, scientific instruments, and medical imaging devices. Industrial manufacturers integrate this chamber into larger coating machines to achieve specific optical performance characteristics.

Constructed from materials such as Stainless Steel 316L, High-Purity Aluminum, and featuring a Borosilicate Glass Viewport, the chamber is built for durability and process visibility. Key parameters include an internal diameter of 800–1200 mm, a working pressure range of 1.0–1.6 mbar, a maximum leak rate of ≤1.0×10⁻⁹ mbar·l/s (ISO 21360), and an operational temperature range of -40–85 °C. The chamber offers 8–12 standard CF flanges for accessories, coating uniformity of ±1%, ultimate pressure of ≤5.0×10⁻⁴ Pa (ISO 21360), heating power of 6–12 kW, and a power supply of 380 ±10% V AC (IEC 60038). Ingress protection is rated IP54–IP65 (IEC 60529), and the material is SUS304 (ASTM A240). Weight ranges from 800–1200 kg depending on configuration.

This chamber operates under high vacuum to enable physical vapor deposition (PVD) or chemical vapor deposition (CVD) processes. It is essential for achieving precise optical coatings in industrial settings. Buyers should verify model-specific values and standards with the legal manufacturer or supplier, as the listed parameters are reference ranges for directory purposes.
Working Principle
The chamber creates a high-vacuum environment where coating materials are vaporized and deposited onto lens surfaces through physical vapor deposition (PVD) or chemical vapor deposition (CVD) processes. In PVD, the coating material is evaporated or sputtered and condenses on the lens. In CVD, precursor gases react on the heated substrate to form a thin film. The chamber's design ensures uniform deposition by controlling vacuum pressure, temperature, and gas flow. The ultimate pressure of ≤5.0×10⁻⁴ Pa is achieved before coating begins, and the working pressure range of 1.0–1.6 mbar is maintained during deposition. Substrate heating (6–12 kW) helps achieve desired film properties. The chamber's ports allow for monitoring and process control. The leak rate of ≤1.0×10⁻⁹ mbar·l/s ensures minimal contamination, and the temperature range of -40–85 °C accommodates various process requirements.
Common Materials
Stainless Steel 316L, High-Purity Aluminum, Borosilicate Glass Viewport
Technical Parameters
ParameterTypical rangeNotes & selection driver
Chamber DiameterRequired800–1200 mmInternal diameter of the vacuum chamber
Working Pressure RangeRequired1.0–1.6 mbarOperational vacuum pressure range
Leak RateRequired≤1.0×10⁻⁹ mbar·l/sMaximum allowable vacuum leak rateISO 21360
Temperature RangeRequired-40–85 °COperational temperature range for coating processes
Number of PortsRequired8–12 countNumber of standard CF flanges for accessories
Coating Uniformity±1 %Thickness variation across the lens surface.
Ultimate Pressure≤5.0×10⁻⁴ PaBase pressure before coating process starts.ISO 21360
Heating Power6–12 kWFor substrate heating to achieve desired film properties.
Power Supply380 ±10% V ACThree-phase, 50/60 Hz.IEC 60038
Ingress ProtectionIP54–IP65Protection against dust and water jets.IEC 60529
MaterialSUS304Stainless steel for corrosion resistance and vacuum compatibility.ASTM A240
Weight800–1200 kgDepends on size and configuration.

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM
  • Vacuum Chamber Body
    Main structural enclosure maintaining vacuum integrity
    Material: Stainless Steel 316L
  • Viewport Assembly
    Optical window for process monitoring and alignment
    Material: Borosilicate Glass
  • Heating Element Optional Part
    Provides controlled thermal environment for coating processes
    Material: Molybdenum
  • Substrate Holder
    Fixture for securing and positioning lenses during coating
    Material: High-Purity Aluminum

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Precision Optical Lens Coating Chamber.

Optical Coating Vacuum Chamber Lens Deposition Chamber Thin-Film Coating Module

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: High vacuum: 1e-6 to 1e-3 Torr (process), 1 atm max (ambient)
other spec: Flow Rate: 10-100 sccm (gas), Slurry Concentration: N/A (dry process), Coating Uniformity: ±2% across 300mm diameter
temperature: -20°C to 200°C (operating), up to 300°C (process)
Media Compatibility
✓ Argon plasma for sputtering ✓ Aluminum oxide (Al2O3) thin films ✓ Silicon dioxide (SiO2) dielectric coatings
Unsuitable: Chlorine-based reactive gases (corrosive to chamber components)
Sizing Data Required
  • Lens diameter and batch quantity (determines chamber volume)
  • Required coating thickness and material (affects process time and gas systems)
  • Desired vacuum level and pump-down time (specifies pumping system capacity)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Coating uniformity degradation
Cause: Contamination buildup on deposition sources or chamber walls, leading to inconsistent material flux and poor film thickness control.
Vacuum system failure
Cause: Seal degradation or pump oil contamination from backstreaming coating materials, resulting in inadequate base pressure and increased defect rates.
Maintenance Indicators
  • Visible particulate contamination on lenses post-coating, indicating filter failure or chamber shedding.
  • Audible change in pump noise (increased vibration or irregular cycling), signaling mechanical wear or vacuum leak.
Engineering Tips
  • Implement strict contamination control protocols, including regular chamber bake-outs and use of high-purity source materials to minimize particulate generation.
  • Establish predictive maintenance for vacuum components using vibration analysis and pressure trend monitoring to preemptively address seal and pump issues.

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
ISO 10110-5:2015 (Optics and photonics - Preparation of drawings for optical elements and systems - Part 5: Surface form tolerances) ANSI Z80.1-2015 (American National Standard for Ophthalmics - Prescription Ophthalmic Lenses - Recommendations) DIN 3140-7:2015 (Optics and optical instruments - Preparation of drawings for optical elements and systems - Part 7: Surface imperfection tolerances)

Quoted from the published standard.

Manufacturing Precision
  • Chamber Bore Diameter: +/-0.01mm
  • Internal Surface Flatness: 0.05mm over 100mm span
Quality Inspection
  • Helium Leak Test (Vacuum Integrity)
  • Surface Roughness Measurement (via White Light Interferometry)

Manufacturers of Precision Optical Lens Coating Chamber

Manufacturer profiles associated with Precision Optical Lens Coating Chamber.

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Frequently Asked Questions

What is the typical application of this coating chamber?

This chamber is used in the manufacture of optical lenses for cameras, scientific instruments, and medical imaging devices. It applies anti-reflective, protective, or functional thin-film coatings to enhance optical performance.

What are the key parameters to verify before integration?

Verify the chamber diameter, working pressure range, leak rate, temperature range, number of ports, coating uniformity, ultimate pressure, heating power, power supply, ingress protection, material, and weight against your specific process requirements and the manufacturer's specifications.

How does the chamber achieve coating uniformity?

Uniformity is achieved through controlled vacuum conditions, precise temperature management, and optimized gas flow. The chamber's design and the specified ±1% uniformity tolerance ensure consistent coating thickness across the lens surface.

What maintenance signals indicate potential issues?

Signs include increased leak rate, reduced ultimate pressure, non-uniform coatings, or temperature fluctuations. Regular inspection of seals, viewport, and heating elements is recommended. Always follow the manufacturer's maintenance guidelines.
Data basis: editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

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